Hello

Im trying to use a ContentPicker on a aspx page in my own section in Umbraco, whenever I try to use the ContentPicker like this post suggests http://www.nibble.be/?p=87 I get a cast error, eventhough the id 1034 is the datatype ContentPicker.

Now I tried using a pagePicker since that is aparently the datatype Umbraco sees 1034 as eventhough it says ContentPicker in the database.

So far I got this code:

DataTypeDefinition dataTypeDefinition1 = DataTypeDefinition.GetDataTypeDefinition(1034);

umbraco.editorControls.pagePicker mediaPicker = (umbraco.editorControls.pagePicker)dataTypeDefinition1.DataType.DataEditor;

PlaceholderMediaPicker.Controls.Add(mediaPicker);

I tried looking at the editContent page of Umbraco and did the JsIncludes and have registered ClientDependency.Core but now I get 

The PathNameAlias specified for dependency ../js/umbracoCheckKeys.js does not exist in the ClientDependencyPathCollection

Can anyone tell me if im working in the right direction and maybe give me some input how to get this to work.